PushTransparencyLayer メソッド (GcWicBitmapGraphics)

The content bounds of the transparency layer. Content won't render outside these bounds. When set to null 参照 (Visual Basicでは Nothing), the content bounds are effectively taken to be the bounds of the current GcWicBitmapGraphics.

Adds a transparency layer to the GcWicBitmapGraphics so that it receives all subsequent drawing operations until PopTransparencyLayer is called.

シンタックス

Visual Basic
C#

'宣言
 
Public Overrides Sub PushTransparencyLayer( _
   ByVal contentBounds As System.Nullable(Of RectangleF), _
   ByVal opacity As System.Single _
)

public override void PushTransparencyLayer( 
   System.Nullable<RectangleF> contentBounds,
   System.float opacity
)

パラメータ

contentBounds: The content bounds of the transparency layer. Content won't render outside these bounds. When set to null 参照 (Visual Basicでは Nothing), the content bounds are effectively taken to be the bounds of the current GcWicBitmapGraphics.
opacity: An opacity value that is applied uniformly to all drawings in the layer when compositing to the backplate.

参照

GcWicBitmapGraphics クラス
 GcWicBitmapGraphics メンバ